# Mass vs FitMaster AI

The clearest difference is price: FitMaster AI at Free against Mass's $0.99. FitMaster AI also leads on iOS requirement (15.0 vs 26.1). Mass's advantage is update cadence (every 6 days vs every 5 weeks). On ads, in-app purchases and device support there is nothing between them.

FitMaster AI is free to download; Mass costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mass ships an update every 6 days, FitMaster AI every 5 weeks. The most recent releases landed on November 4, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Mass | FitMaster AI |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 5 weeks |
| Monetization | Paid | — |
| Size | 15 MB | 59 MB |
| Requires iOS | 26.1 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Runar Hummelsund](https://appshunter.io/developer/1143920863) | [Divyesh Patel](https://appshunter.io/developer/1880116447) |

## What reviewers say

### Mass

[App page](https://appshunter.io/ios/app/mass-workout-tracker/id6739637482)

This app simplifies strength training by allowing users to quickly log sets, track weight and reps, and monitor workout consistency. It offers features like custom workout creation, warm-up suggestions, and progress review, making it ideal for consistent strength building.

**Highlights:** Create custom workouts, Log reps and weight, Track weekly volume, View plate math, Add warm-up suggestions, Review session history

**Features:** macOS Compatibility

**In-app purchases:** none


### FitMaster AI

[App page](https://appshunter.io/ios/app/fitmaster-ai-rep-counter/id6766699808)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Mass free?

Mass costs $0.99, with no in-app purchases.

### Is FitMaster AI free?

FitMaster AI is free to download, with no in-app purchases.

### Do Mass or FitMaster AI have ads?

Neither Mass nor FitMaster AI shows ads.

### Which is updated more often, Mass or FitMaster AI?

Mass ships an update every 6 days, and FitMaster AI every 5 weeks. Most recently, Mass was updated on November 4, 2026 and FitMaster AI on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*